5. the sequence of events in the action potential in a contractile fiber of the heart. (Include the events in the ion channels involved.) (1a) norepinephrine from the Sympathetic Division of the ANS stimulates a given conducting myofiber or contractile cardiac muscle cell to depolarize; or,
Actress | Producer. Patridge was born in Los Angeles, California, to Lynn (Clelland) and Mark Patridge, and is the eldest of four children. She has English, German, Belgian (Walloon and Flemish), Italian, and Polish ancestry.
Scroll down for video. Bad boy rap: Justin Bobby Brescia-pictured in 2009 - was the guy who broke Audrina Patridge's heart over and over again on The Hills but now he's setting the record straight on their relationship and a lot of other things. 'There was a genuine loving friendship with me and Audrina,' Brescia told Us Weekly.